Tropical coral reefs are solar-powered oases of marine biodiversity, where scleractinian corals are responsible for building the reef structures that host over 30% of all named marine multicellular species (Fisher et al., 2015). Corals rely heavily on photosynthesis by their dinoflagellate endosymbionts (Symbiodiniaceae) to meet their metabolic requirements (Muscatine, 1990). The distribution of reef-building corals is therefore constrained by the availability of photosynthetically active radiation (PAR, 400–700 nm), which is in turn determined by physical factors such as latitude, seasonality, water depth, and the optical properties of the water body (Kirk, 1994; Kleypas et al., 1999; López-Londoño et al., 2021). Variability in these parameters affects both the quantity and spectral quality of irradiance, exposing corals to a large range of light environments even across small spatial scales (Anthony and Hoegh-Guldberg, 2003; Brakel, 1979; Eyal et al., 2015). On shallow reef flats in clear water regions, corals are routinely exposed to excess irradiance that supersaturates symbiont photosynthesis (Jimenez et al., 2012; Wangpraseurt et al., 2014b), with short light flashes reaching over 3900 µmol photons m^–2 s^–1 due to the lensing effect of waves (Veal et al., 2010). Additionally, shallow-water corals are exposed to a broad irradiance spectrum covering UV to near infrared radiation (Wangpraseurt et al., 2014b). At the other extreme end of the scale, photosynthetic corals on mesophotic reefs at water depths between 50 and 150 m can receive as little as 1% of surface PAR, largely concentrated in the blue-green region of the spectrum and greatly reduced for UV and red wavebands (Eyal et al., 2015; Lesser et al., 2009; Tamir et al., 2019). Light conditions can also vary for individual colonies from the same water depth depending on colony morphology (Kaniewska et al., 2011; Wangpraseurt et al., 2014b) and the reef structure that surrounds them (Falkowski and Dubinsky, 1981; Wangpraseurt et al., 2014b).

Corals have evolved a number of mechanisms for optimising symbiont photosynthesis in the presence of spatial and temporal heterogeneity in light availability. Some of these mechanisms occur at the symbiont cell level, while others involve changes in the coral colony morphology and polyp behaviour (Hoogenboom et al., 2008; Kahng et al., 2019; Kaniewska et al., 2013; Kaniewska and Sampayo, 2022; Kramer et al., 2021; Levy et al., 2003; Todd, 2008). Coral symbionts can modify their light harvesting and energy quenching over timescales ranging from seconds to months. For example, non-photochemical quenching allows rapid dissipation of excess irradiance in the photosynthetic apparatus of symbionts, preventing photodamage in high light environments (Einbinder et al., 2016; Gorbunov et al., 2001; Hoegh-Guldberg and Jones, 1999).

Coral symbionts associated with deeper-water colonies have been frequently found to differ from their shallow-water counterparts in terms of photosystem II photochemical efficiency, maximum electron transport rates, and the organisation of light-harvesting antennae (Einbinder et al., 2016; Hennige et al., 2008; Lohr et al., 2019).

Photosynthetic pigment concentrations and symbiont cell numbers are dynamic within coral colonies, enabling them to acclimate to changes in irradiance; specifically, corals can increase their symbiont numbers as well as the per cell photosynthetic pigment content in response to a reduction in light levels and vice versa (Eyal et al., 2019; Falkowski and Dubinsky, 1981; Martinez et al., 2020; Tamir et al., 2020; Titlyanov et al., 2001). Symbiont community composition within colonies is also known to vary along light and temperature gradients, although the plasticity of this association and the extent to which it can contribute to photoacclimation appears to be species-specific (Chan et al., 2009; Leydet and Hellberg, 2016; Einbinder et al., 2016; Kaniewska and Sampayo, 2022; Lesser et al., 2010; Martinez et al., 2020; Nir et al., 2011; Winters et al., 2009). The interplay between light and temperature is also likely to play a role in shaping these communities on mesophotic reefs (Kahng et al., 2019; Kahng and Kelley, 2007), as the low temperatures sometimes encountered at depth affect the photosynthetic rates of symbiont species differently (Grégoire et al., 2017).

Coral host morphology is an important factor controlling the irradiance available for symbiont photosynthesis (Einbinder et al., 2009; Helmuth et al., 1997; Kahng et al., 2019; Kahng et al., 2012; Kaniewska et al., 2011; Kaniewska and Sampayo, 2022; Nir et al., 2011; Ralph et al., 2002; Wangpraseurt et al., 2014b). Coral colonies from low light environments maximise absorption of downwelling light and assume horizontal plate-like morphologies that promote light collection, while shallow-water colonies assume self-shading morphologies, such as vertical plates or branches (Anthony et al., 2005; Kaniewska et al., 2011). Morphological adaptations make some species depth-specialists, such as the mesophotic coral Leptoseris, which can host photosynthetic symbionts down to depths of well over 100 m (Kahng et al., 2020; Rouzé et al., 2021). Depth-generalist corals on the other hand, such as Montastraea cavernosa in the Caribbean, thrive across light gradients of several orders of magnitude (Lesser et al., 2010). These corals often assume different morphologies in different light environments, allowing a single species to occupy a wider environmental niche. On mesophotic reefs, for instance, the depth-generalist corals Paramontastrea peresi and Porites lobata have growth forms that enhance light exposure, and their skeletons have higher reflectivity compared to their shallow water conspecifics, resulting in higher absorption by the symbionts (Kramer et al., 2020). Such morphological differences are partially due to phenotypic plasticity, as shown by transplantation experiments across depth gradients (Muko et al., 2000; Willis, 1985). However, the relationship between light and colony morphology is not always predictable (Doszpot et al., 2019) as other environmental variables such as hydrodynamics also affect colony morphology (Soto et al., 2018).

Light availability to the coral symbionts depends on the optical properties of the surrounding host tissue and the underlying skeleton (Marcelino et al., 2013; Wangpraseurt et al., 2019; Wangpraseurt et al., 2012). Coral tissue and skeleton scatter incident light with a strength and directionality that are highly variable across species and even between different structures within a single colony (Enríquez et al., 2017; Marcelino et al., 2013; Wangpraseurt et al., 2019; Wangpraseurt et al., 2016a). The interplay between tissue and skeleton scattering/reflection and algal absorption modulate coral photosynthesis (Brodersen et al., 2014; Marcelino et al., 2013; Scheufen et al., 2017; Wangpraseurt et al., 2019). This can lead to outstanding photosynthetic quantum efficiencies that are close to the theoretical maximum, at least for the coral species for which this parameter has been investigated (Brodersen et al., 2014).

Aside from variability in skeletal morphology, tissue-level changes such as contraction and expansion are known to affect light penetration (Wangpraseurt et al., 2014a; Wangpraseurt et al., 2017b). The thickness and composition of the tissue can be affected by a number of variables, including genotype, nutritional status, seasonality, and environmental history (Harland et al., 1992; Jones et al., 2020; Leinbach et al., 2021; Lough and Barnes, 2000; Rocker et al., 2019). Changes in tissue composition (e.g. lipids, collagen, and proteins) will affect the light-scattering properties of the bulk tissue (Jacques, 2013), although detailed investigations on coral optical properties in relation to tissue composition and nutrient status remain to be performed (Lyndby et al., 2019).

The coral host can also modulate incident light by synthesising host pigments. The most widespread coral host pigments belong to the green fluorescent protein (GFP)-like superfamily, a group of homologous pigments which are ubiquitous among the Cnidaria (Alieva et al., 2008; Matz et al., 1999; Shimomura et al., 1962). Pigments in this family share a similar structure based on a tripeptide chromophore capable of absorbing visible or UV radiation (Nienhaus and Wiedenmann, 2009). However, despite having similar structure, cnidarian GFP-like proteins exhibit great variability in their optical properties and regulation mechanisms, indicating that they are functionally diverse (Aihara et al., 2019; Alieva et al., 2008; D’Angelo et al., 2008; Leutenegger et al., 2007; Nienhaus and Wiedenmann, 2009; Salih et al., 2000; Smith et al., 2013).

GFP-like proteins with light-induced expression are found predominantly in corals from high-light environments, and they are transcriptionally regulated by blue-light intensity (D’Angelo et al., 2008; Salih et al., 2000). GFP-like proteins with light-induced expression include fluorescent proteins (FPs) with emission in the cyan, green, and red spectral regions (cyan fluorescent proteins [CFPs], GFPs, and red fluorescent proteins [RFPs]), which absorb light and re-emit it as red-shifted radiation, and non-fluorescent chromoproteins (CPs), which absorb light but have no or little fluorescence emission (Alieva et al., 2008; D’Angelo et al., 2008). These pigments accumulate in high concentration in colony parts with low symbiont densities, often areas of active growth, such as skeletal ridges, the tips of branching corals, the margins of plating corals, and areas affected by epibionts and mechanical damage (D’Angelo et al., 2012a; Salih et al., 2000). The increased photon fluxes inside the host tissue caused by the absence of light absorption by the symbionts, and light reflection and scattering by skeleton and host tissue components (Enríquez et al., 2005; Wangpraseurt et al., 2017a) have been suggested to cause the high-level pigment expression in these colony parts (Bollati et al., 2020; Smith et al., 2013). Additionally, blue light-induced upregulation as part of an optical feedback loop has been shown to drive strong accumulation of these pigments in bleached corals during episodes of mild heat stress or in heat-free bleaching, caused, for instance, by nutrient stress (Bollati et al., 2020; Wiedenmann et al., 2013).

FPs and CPs with light-induced expression are usually localised ectodermally and have been shown to exert a photoprotective function on the underlying symbiont layer (Gittins et al., 2015; Quick et al., 2018; Salih et al., 2000; Smith et al., 2013). Upregulation of these pigments in growing parts of colonies and in bleached tissue has been proposed to promote (re)colonisation of host tissue by symbiont cells via the reduction of internal light stress in areas with low symbiont densities (Bollati et al., 2020; D’Angelo et al., 2012a; Smith et al., 2013).

GFP-like proteins are also widely distributed in corals that are depth generalists or even mesophotic specialists (Eyal et al., 2015; Oswald et al., 2007), where they are constitutively expressed, often at high levels, across a wide range of irradiance regimes (Leutenegger et al., 2007). It has long been proposed that fluorescent pigments in low light habitats could enhance coral photosynthesis by modulating the spectrum and intensity of light that reaches the symbiont cells (Salih et al., 2000; Schlichter et al., 1994). A light-enhancement mechanism has been suggested for a particular group of constitutive GFP-like proteins known as photoconvertible RFPs (pcRFPs), which are common in thick-tissue depth generalist and mesophotic coral species (Ando et al., 2002; Eyal et al., 2015; Oswald et al., 2007; Wiedenmann et al., 2004). pcRFPs emit green fluorescence when first synthesised, but their chromophores are irreversibly converted to a red-emitting species upon absorption of a near-UV photon ~390 nm (Ando et al., 2002; Wiedenmann et al., 2004). As coral GFP-like proteins are typically arranged in tetramers, near-UV-induced post-translational modification leads to the formation of tetramers that contain both green and red subunits; they can therefore absorb light in the blue-green range and re-emit it in the orange-red range via highly efficient Förster resonance energy transfer between adjacent subunits (Bollati et al., 2017; Wiedenmann et al., 2004). The orange-red waveband is scarce on mesophotic reefs, yet it can stimulate chlorophyll fluorescence deeper in the tissue compared to blue-green wavelengths because it is poorly absorbed by photosynthetic pigments, an effect analogous to green light-driven photosynthesis in plant leaves (de Mooij et al., 2016; Smith et al., 2017; Vogelmann and Evans, 2002). Indeed, pcRFP-containing corals have been shown to survive better under a simulated mesophotic light spectrum as compared to non-pigmented conspecifics (Smith et al., 2017).

While GFP-like proteins are likely to have additional functions for the coral holobiont (Aihara et al., 2019; Ben-Zvi et al., 2022; Yamashita et al., 2021), optimisation of the symbiont light environment is arguably one of their primary roles. The effects of GFP-like proteins on the light environment experienced by coral symbionts are not simply dependent on the spectral properties of the isolated protein; rather, they are a product of the environmental and physiological regulation of the protein within its three-dimensional optical context. For example, microsensor measurements and optical modelling have shown that scattering by GFP-like proteins can enhance light penetration at low GFP concentrations, while high concentrations of GFP increase backscattering and reduce light penetration through the coral tissue (Lyndby et al., 2016; Taylor Parkins et al., 2021). Variability in the distribution and arrangement of these proteins – diffuse or granular and ectodermal or endodermal – also affects how they interact with light (Salih et al., 2000; Wangpraseurt et al., 2019), further indicating that spectrally similar GFP-like proteins can be involved in different light modulation mechanisms.

While compelling, the vast majority of evidence provided so far to support the role of GFP-like proteins in modulating the coral photosymbiont light environment during photoacclimation is indirect. This includes light measurements taken outside of the coral tissue (Smith et al., 2017; Smith et al., 2013), optical simulations (Lyndby et al., 2016), and experiments performed on coral-related animals (e.g. corallimorpharians) and isolated symbionts (Smith et al., 2017; Smith et al., 2013). So far, quantitative in vivo and in situ measurements of the symbiont light environment in response to light-driven changes in host pigment composition have been lacking. Here, we used advanced optical sensor technology to directly quantify how light-driven regulation of GFP-like proteins affects the intra-tissue light microenvironment of depth-generalist and shallow-water corals. We focused on the effects of (i) near-UV-driven photoconversion in corals containing pcRFPs, and (ii) blue light-driven upregulation of inducible CPs during bleaching and in active growth zones. Our study provides an essential step towards understanding the role of these pigments in optimising the functioning of the coral-algal symbiosis under extreme light regimes.

Data used in this study is available from https://doi.org/10.5061/dryad.0gb5mkm1z.

1. 1. Bollati E

   (2022) Dryad Digital Repository

   Data from: Green fluorescent protein-like pigments optimize the internal light environment in symbiotic reef building corals.

   https://doi.org/10.5061/dryad.0gb5mkm1z

1. 1. Aihara Y
   2. Maruyama S
   3. Baird AH
   4. Iguchi A
   5. Takahashi S
   6. Minagawa J

   (2019) Green fluorescence from cnidarian hosts attracts symbiotic algae

   PNAS 116:2118–2123.

   https://doi.org/10.1073/pnas.1812257116

   • PubMed
   • Google Scholar
2. 1. Alieva NO
   2. Konzen KA
   3. Field SF
   4. Meleshkevitch EA
   5. Hunt ME
   6. Beltran-Ramirez V
   7. Miller DJ
   8. Wiedenmann J
   9. Salih A
   10. Matz MV

   (2008) Diversity and evolution of coral fluorescent proteins

   PLOS ONE 3:e2680.

   https://doi.org/10.1371/journal.pone.0002680

   • PubMed
   • Google Scholar
3. 1. Ando R
   2. Hama H
   3. Yamamoto-Hino M
   4. Mizuno H
   5. Miyawaki A

   (2002) An optical marker based on the UV-induced green-to-red photoconversion of a fluorescent protein

   PNAS 99:12651–12656.

   https://doi.org/10.1073/pnas.202320599

   • PubMed
   • Google Scholar
4. 1. Anthony KRN
   2. Hoegh-Guldberg O

   (2003) Variation in coral photosynthesis, respiration and growth characteristics in contrasting light microhabitats: an analogue to plants in forest gaps and understoreys?

   Functional Ecology 17:246–259.

   https://doi.org/10.1046/j.1365-2435.2003.00731.x

   • Google Scholar
5. 1. Anthony KRN
   2. Hoogenboom MO
   3. Connolly SR

   (2005) Adaptive variation in coral geometry and the optimization of internal colony light climates

   Functional Ecology 19:17–26.

   https://doi.org/10.1111/j.0269-8463.2005.00925.x

   • Google Scholar
6. 1. Beltrán-Torres AU
   2. Carricart-Ganivet JP

   (1993)

   Skeletal morphologic variation in Montastrea cavernosa

   Revista de Biología Tropical 41:559–562.

   • Google Scholar
7. 1. Ben-Zvi O
   2. Wangpraseurt D
   3. Bronstein O
   4. Eyal G
   5. Loya Y

   (2021) Photosynthesis and bio-optical properties of fluorescent mesophotic corals

   Frontiers in Marine Science 8:1–12.

   https://doi.org/10.3389/fmars.2021.651601

   • Google Scholar
8. 1. Ben-Zvi O
   2. Lindemann Y
   3. Eyal G
   4. Loya Y

   (2022) Coral fluorescence: a prey-lure in deep habitats

   Communications Biology 5:537.

   https://doi.org/10.1038/s42003-022-03460-3

   • PubMed
   • Google Scholar
9. 1. Bollati E
   2. Plimmer D
   3. D’Angelo C
   4. Wiedenmann J

   (2017) FRET-mediated long-range wavelength transformation by photoconvertible fluorescent proteins as an efficient mechanism to generate orange-red light in symbiotic deep water corals

   International Journal of Molecular Sciences 18:E1174.

   https://doi.org/10.3390/ijms18071174

   • PubMed
   • Google Scholar
10. 1. Bollati E
    2. D’Angelo C
    3. Alderdice R
    4. Pratchett M
    5. Ziegler M
    6. Wiedenmann J

    (2020) Optical feedback loop involving dinoflagellate symbiont and scleractinian host drives colorful coral bleaching

    Current Biology 30:2433–2445.

    https://doi.org/10.1016/j.cub.2020.04.055

    • PubMed
    • Google Scholar
11. 1. Brakel W

    (1979)

    Small-scale spatial variation in light available to coral reef benthos: Quantum irradiance measurements from a Jamaican reef

    Bulletin of Marine Science 29:406–413.

    • Google Scholar
12. 1. Brazeau DA
    2. Lesser MP
    3. Slattery M

    (2013) Genetic structure in the coral, Montastraea cavernosa: assessing genetic differentiation among and within mesophotic reefs

    PLOS ONE 8:e65845.

    https://doi.org/10.1371/journal.pone.0065845

    • PubMed
    • Google Scholar
13. 1. Brodersen KE
    2. Lichtenberg M
    3. Ralph PJ
    4. Kühl M
    5. Wangpraseurt D

    (2014) Radiative energy budget reveals high photosynthetic efficiency in symbiont-bearing corals

    Journal of the Royal Society, Interface 11:20130997.

    https://doi.org/10.1098/rsif.2013.0997

    • PubMed
    • Google Scholar
14. 1. Chan YL
    2. Pochon X
    3. Fisher MA
    4. Wagner D
    5. Concepcion GT
    6. Kahng SE
    7. Toonen RJ
    8. Gates RD

    (2009) Generalist dinoflagellate endosymbionts and host genotype diversity detected from mesophotic (67-100 m depths) coral Leptoseris

    BMC Ecology 9:21.

    https://doi.org/10.1186/1472-6785-9-21

    • PubMed
    • Google Scholar
15. 1. de Mooij T
    2. de Vries G
    3. Latsos C
    4. Wijffels RH
    5. Janssen M

    (2016) Impact of light color on photobioreactor productivity

    Algal Research 15:32–42.

    https://doi.org/10.1016/j.algal.2016.01.015

    • Google Scholar
16. 1. Doszpot NE
    2. McWilliam MJ
    3. Pratchett MS
    4. Hoey AS
    5. Figueira WF

    (2019) Plasticity in three-dimensional geometry of branching corals along a cross-shelf gradient

    Diversity 11:44.

    https://doi.org/10.3390/d11030044

    • Google Scholar
17. 1. Dove SG
    2. Takabayashi M
    3. Hoegh-Guldberg O

    (1995) Isolation and partial characterization of the pink and blue pigments of pocilloporid and acroporid corals

    The Biological Bulletin 189:288–297.

    https://doi.org/10.2307/1542146

    • PubMed
    • Google Scholar
18. 1. D’Angelo C
    2. Denzel A
    3. Vogt A
    4. Matz M
    5. Oswald F
    6. Salih A
    7. Nienhaus G
    8. Wiedenmann J

    (2008) Blue light regulation of host pigment in reef-building corals

    Marine Ecology Progress Series 364:97–106.

    https://doi.org/10.3354/meps07588

    • Google Scholar
19. 1. D’Angelo C
    2. Smith EG
    3. Oswald F
    4. Burt J
    5. Tchernov D
    6. Wiedenmann J

    (2012a) Locally accelerated growth is part of the innate immune response and repair mechanisms in reef-building corals as detected by green fluorescent protein (GFP)-like pigments

    Coral Reefs 31:1045–1056.

    https://doi.org/10.1007/s00338-012-0926-8

    • Google Scholar
20. 1. D’Angelo C
    2. Wiedenmann J

    (2012b) An experimental mesocosm for long-term studies of reef corals

    Journal of the Marine Biological Association of the United Kingdom 92:769–775.

    https://doi.org/10.1017/S0025315411001883

    • Google Scholar
21. 1. Einbinder S
    2. Mass T
    3. Brokovich E
    4. Dubinsky Z
    5. Erez J
    6. Tchernov D

    (2009) Changes in morphology and diet of the coral Stylophora pistillata along a depth gradient

    Marine Ecology Progress Series 381:167–174.

    https://doi.org/10.3354/meps07908

    • Google Scholar
22. 1. Einbinder S
    2. Gruber DF
    3. Salomon E
    4. Liran O
    5. Keren N
    6. Tchernov D

    (2016) Novel adaptive photosynthetic characteristics of mesophotic symbiotic microalgae within the reef-building coral, Stylophora pistillata

    Frontiers in Marine Science 3:00195.

    https://doi.org/10.3389/fmars.2016.00195

    • Google Scholar
23. 1. Enríquez S
    2. Méndez ER
    3. -Prieto RI

    (2005) Multiple scattering on coral skeletons enhances light absorption by symbiotic algae

    Limnology and Oceanography 50:1025–1032.

    https://doi.org/10.4319/lo.2005.50.4.1025

    • Google Scholar
24. 1. Enríquez S
    2. Méndez ER
    3. Hoegh-Guldberg O
    4. Iglesias-Prieto R

    (2017) Key functional role of the optical properties of coral skeletons in coral ecology and evolution

    Proceedings. Biological Sciences 284:20161667.

    https://doi.org/10.1098/rspb.2016.1667

    • PubMed
    • Google Scholar
25. 1. Eyal Gal
    2. Wiedenmann J
    3. Grinblat M
    4. D’Angelo C
    5. Kramarsky-Winter E
    6. Treibitz T
    7. Ben-Zvi O
    8. Shaked Y
    9. Smith TB
    10. Harii S
    11. Denis V
    12. Noyes T
    13. Tamir R
    14. Loya Y

    (2015) Spectral diversity and regulation of coral fluorescence in a mesophotic reef habitat in the red sea

    PLOS ONE 10:e0128697.

    https://doi.org/10.1371/journal.pone.0128697

    • PubMed
    • Google Scholar
26. 1. Eyal G
    2. Cohen I
    3. Eyal-Shaham L
    4. Ben-Zvi O
    5. Tikochinski Y
    6. Loya Y

    (2019) Photoacclimation and induction of light-enhanced calcification in the mesophotic coral Euphyllia paradivisa

    Royal Society Open Science 6:180527.

    https://doi.org/10.1098/rsos.180527

    • PubMed
    • Google Scholar
27. 1. Falkowski PG
    2. Dubinsky Z

    (1981) Light-shade adaptation of Stylophora pistillata, a hermatypic coral from the Gulf of Eilat

    Nature 289:172–174.

    https://doi.org/10.1038/289172a0

    • Google Scholar
28. 1. Field SF
    2. Bulina MY
    3. Kelmanson IV
    4. Bielawski JP
    5. Matz MV

    (2006) Adaptive evolution of multicolored fluorescent proteins in reef-building corals

    Journal of Molecular Evolution 62:332–339.

    https://doi.org/10.1007/s00239-005-0129-9

    • PubMed
    • Google Scholar
29. 1. Fisher R
    2. O’Leary RA
    3. Low-Choy S
    4. Mengersen K
    5. Knowlton N
    6. Brainard RE
    7. Caley MJ

    (2015) Species richness on coral reefs and the pursuit of convergent global estimates

    Current Biology 25:500–505.

    https://doi.org/10.1016/j.cub.2014.12.022

    • PubMed
    • Google Scholar
30. 1. Gittins JR
    2. D’Angelo C
    3. Oswald F
    4. Edwards RJ
    5. Wiedenmann J

    (2015) Fluorescent protein-mediated colour polymorphism in reef corals: multicopy genes extend the adaptation/acclimatization potential to variable light environments

    Molecular Ecology 24:453–465.

    https://doi.org/10.1111/mec.13041

    • PubMed
    • Google Scholar
31. 1. Gorbunov MY
    2. Kolber ZS
    3. Lesser MP
    4. Falkowski PG

    (2001) Photosynthesis and photoprotection in symbiotic corals

    Limnology and Oceanography 46:75–85.

    https://doi.org/10.4319/lo.2001.46.1.0075

    • Google Scholar
32. 1. Grégoire V
    2. Schmacka F
    3. Coffroth MA
    4. Karsten U

    (2017) Photophysiological and thermal tolerance of various genotypes of the coral endosymbiont Symbiodinium sp. (Dinophyceae)

    Journal of Applied Phycology 29:1893–1905.

    https://doi.org/10.1007/s10811-017-1127-1

    • Google Scholar
33. 1. Harland AD
    2. Davies PS
    3. Fixter LM

    (1992) Lipid content of some Caribbean corals in relation to depth and light

    Marine Biology 113:357–361.

    https://doi.org/10.1007/BF00349159

    • Google Scholar
34. 1. Helmuth BST
    2. Timmerman BEH
    3. Sebens KP

    (1997) Interplay of host morphology and symbiont microhabitat in coral aggregations

    Marine Biology 130:1–10.

    https://doi.org/10.1007/s002270050219

    • Google Scholar
35. 1. Hennige S
    2. Smith D
    3. Perkins R
    4. Consalvey M
    5. Paterson D
    6. Suggett D

    (2008) Photoacclimation, growth and distribution of massive coral species in clear and turbid waters

    Marine Ecology Progress Series 369:77–88.

    https://doi.org/10.3354/meps07612

    • Google Scholar
36. 1. Hoegh-Guldberg O
    2. Jones RJ

    (1999) Photoinhibition and photoprotection in symbiotic dinoflagellates from reef-building corals

    Marine Ecology Progress Series 183:73–86.

    https://doi.org/10.3354/meps183073

    • Google Scholar
37. 1. Hoogenboom MO
    2. Connolly SR
    3. Anthony KRN

    (2008) Interactions between morphological and physiological plasticity optimize energy acquisition in corals

    Ecology 89:1144–1154.

    https://doi.org/10.1890/07-1272.1

    • PubMed
    • Google Scholar
38. 1. Jacques SL

    (2013) Optical properties of biological tissues: a review

    Physics in Medicine and Biology 58:R37–R61.

    https://doi.org/10.1088/0031-9155/58/11/R37

    • PubMed
    • Google Scholar
39. 1. Jiang J
    2. Zhang H
    3. Kang Y
    4. Bina D
    5. Lo CS
    6. Blankenship RE

    (2012) Characterization of the peridinin-chlorophyll a-protein complex in the dinoflagellate Symbiodinium

    Biochimica et Biophysica Acta 1817:983–989.

    https://doi.org/10.1016/j.bbabio.2012.03.027

    • PubMed
    • Google Scholar
40. 1. Jimenez IM
    2. Larkum AWD
    3. Ralph PJ
    4. Kühl M

    (2012) In situ thermal dynamics of shallow water corals is affected by tidal patterns and irradiance

    Marine Biology 159:1773–1782.

    https://doi.org/10.1007/s00227-012-1968-8

    • Google Scholar
41. 1. Jones R
    2. Giofre N
    3. Luter HM
    4. Neoh TL
    5. Fisher R
    6. Duckworth A

    (2020) Responses of corals to chronic turbidity

    Scientific Reports 10:1–13.

    https://doi.org/10.1038/s41598-020-61712-w

    • PubMed
    • Google Scholar
42. 1. Kahng SE
    2. Kelley CD

    (2007) Vertical zonation of megabenthic taxa on a deep photosynthetic reef (50–140 m) in the Au’au Channel, Hawaii

    Coral Reefs 26:679–687.

    https://doi.org/10.1007/s00338-007-0253-7

    • Google Scholar
43. 1. Kahng SE
    2. Hochberg EJ
    3. Apprill A
    4. Wagner D
    5. Luck DG
    6. Perez D
    7. Bidigare RR

    (2012) Efficient light harvesting in deep-water zooxanthellate corals

    Marine Ecology Progress Series 455:65–77.

    https://doi.org/10.3354/meps09657

    • Google Scholar
44. Book

    1. Kahng SE
    2. Akkaynak D
    3. Shlesinger T
    4. Hochberg EJ
    5. Wiedenmann J
    6. Tamir R
    7. Tchernov D

    (2019) Light, temperature, photosynthesis, heterotrophy, and the lower depth limits of mesophotic coral ecosystems In

    In: Loya Y, Puglise KA, Bridge TCL, editors. Mesophotic Coral Ecosystems. Cham: Springer International Publishing. pp. 801–828.

    https://doi.org/10.1007/978-3-319-92735-0_42

    • Google Scholar
45. 1. Kahng SE
    2. Watanabe TK
    3. Hu HM
    4. Watanabe T
    5. Shen CC

    (2020) Moderate zooxanthellate coral growth rates in the lower photic zone

    Coral Reefs 39:1273–1284.

    https://doi.org/10.1007/s00338-020-01960-4

    • Google Scholar
46. 1. Kaniewska P
    2. Magnusson SH
    3. Anthony KRN
    4. Reef R
    5. Kühl M
    6. Hoegh-Guldberg O

    (2011) Importance of macro- versus microstructure in modulating light levels inside coral colonies

    Journal of Phycology 47:846–860.

    https://doi.org/10.1111/j.1529-8817.2011.01021.x

    • PubMed
    • Google Scholar
47. 1. Kaniewska P
    2. Anthony KRN
    3. Sampayo EM
    4. Campbell PR
    5. Hoegh-Guldberg O

    (2013) Implications of geometric plasticity for maximizing photosynthesis in branching corals

    Marine Biology 161:313–328.

    https://doi.org/10.1007/s00227-013-2336-z

    • Google Scholar
48. 1. Kaniewska P
    2. Sampayo EM

    (2022) Macro- and micro-scale adaptations allow distinct Stylophora pistillata-symbiodiniaceae holobionts to optimize performance across a broad light habitat

    Journal of Phycology 58:55–70.

    https://doi.org/10.1111/jpy.13215

    • PubMed
    • Google Scholar
49. Book

    1. Kirk JTO

    (1994) Light and Photosynthesis in Aquatic Ecosystems

    Cambridge: Cambridge University Press.

    https://doi.org/10.1017/CBO9780511623370

    • Google Scholar
50. 1. Kleypas JA
    2. Mcmanus JW
    3. Meñez LAB

    (1999) Environmental limits to coral reef development: where do we draw the line?

    American Zoologist 39:146–159.

    https://doi.org/10.1093/icb/39.1.146

    • Google Scholar
51. Preprint

    1. Kramer N
    2. Tamir R
    3. Ben-Zvi O
    4. Jacques SL
    5. Loya Y
    6. Wangpraseurt D

    (2020) Light-harvesting in mesophotic corals is powered by a spatially efficient photosymbiotic system between coral host and microalgae

    bioRxiv.

    https://doi.org/10.1101/2020.12.04.411496

    • Google Scholar
52. Preprint

    1. Kramer N
    2. Guan J
    3. Chen S
    4. Wangpraseurt D
    5. Loya Y

    (2021) Characterization of Morpho-Functional Traits in Mesophotic Corals Reveals Optimized Light Capture and Photosynthesis

    bioRxiv.

    https://doi.org/10.1101/2021.09.29.462347

    • Google Scholar
53. 1. Kühl M
    2. Cohen Y
    3. Dalsgaard T
    4. Jørgensen B
    5. Revsbech N

    (1995) Microenvironment and photosynthesis of zooxanthellae in scleractinian corals studied with microsensors for O₂, pH and light

    Marine Ecology Progress Series 117:159–172.

    https://doi.org/10.3354/meps117159

    • Google Scholar
54. 1. Kühl M

    (2005) Optical microsensors for analysis of microbial communities

    Methods in Enzymology 397:166–199.

    https://doi.org/10.1016/S0076-6879(05)97010-9

    • PubMed
    • Google Scholar
55. 1. Leinbach SE
    2. Speare KE
    3. Rossin AM
    4. Holstein DM
    5. Strader ME

    (2021) Energetic and reproductive costs of coral recovery in divergent bleaching responses

    Scientific Reports 11:1–10.

    https://doi.org/10.1038/s41598-021-02807-w

    • PubMed
    • Google Scholar
56. 1. Lesser MP
    2. Slattery M
    3. Leichter JJ

    (2009) Ecology of mesophotic coral reefs

    Journal of Experimental Marine Biology and Ecology 375:1–8.

    https://doi.org/10.1016/j.jembe.2009.05.009

    • Google Scholar
57. 1. Lesser MP
    2. Slattery M
    3. Stat M
    4. Ojimi M
    5. Gates RD
    6. Grottoli A

    (2010) Photoacclimatization by the coral Montastraea cavernosa in the mesophotic zone: light, food, and genetics

    Ecology 91:990–1003.

    https://doi.org/10.1890/09-0313.1

    • PubMed
    • Google Scholar
58. 1. Leutenegger A
    2. D’Angelo C
    3. Matz MV
    4. Denzel A
    5. Oswald F
    6. Salih A
    7. Nienhaus GU
    8. Wiedenmann J

    (2007) It’s cheap to be colorful. Anthozoans show a slow turnover of GFP-like proteins

    FEBS Journal 274:2496–2505.

    https://doi.org/10.1111/j.1742-4658.2007.05785.x

    • PubMed
    • Google Scholar
59. 1. Levy O
    2. Dubinsky Z
    3. Achituv Y

    (2003) Photobehavior of stony corals: responses to light spectra and intensity

    The Journal of Experimental Biology 206:4041–4049.

    https://doi.org/10.1242/jeb.00622

    • PubMed
    • Google Scholar
60. 1. Leydet KP
    2. Hellberg ME

    (2016) DDiscordant coral–symbiont structuring: factors shaping geographical variation of Symbiodinium communities in a facultative zooxanthellate coral genus, Oculina

    Coral Reefs (Onlin 35:583–595.

    https://doi.org/10.1007/s00338-016-1409-0

    • Google Scholar
61. 1. Lichtenberg M
    2. Larkum AWD
    3. Kühl M

    (2016) Photosynthetic acclimation of Symbiodinium in hospite depends on vertical position in the tissue of the scleractinian coral Montastrea curta

    Frontiers in Microbiology 7:230.

    https://doi.org/10.3389/fmicb.2016.00230

    • PubMed
    • Google Scholar
62. 1. Lichtenberg M
    2. Brodersen KE
    3. Kühl M

    (2017) Radiative energy budgets of phototrophic surface-associated microbial communities and their photosynthetic efficiency under diffuse and collimated light

    Frontiers in Microbiology 8:1–17.

    https://doi.org/10.3389/fmicb.2017.00452

    • PubMed
    • Google Scholar
63. 1. Lohr KE
    2. Camp EF
    3. Kuzhiumparambil U
    4. Lutz A
    5. Leggat W
    6. Patterson JT
    7. Suggett DJ

    (2019) Resolving coral photoacclimation dynamics through coupled photophysiological and metabolomic profiling

    The Journal of Experimental Biology 222:jeb195982.

    https://doi.org/10.1242/jeb.195982

    • PubMed
    • Google Scholar
64. 1. López-Londoño T
    2. Galindo-Martínez CT
    3. Gómez-Campo K
    4. González-Guerrero LA
    5. Roitman S
    6. Pollock FJ
    7. Pizarro V
    8. López-Victoria M
    9. Medina M
    10. Iglesias-Prieto R

    (2021) Physiological and ecological consequences of the water optical properties degradation on reef corals

    Coral Reefs 40:1243–1256.

    https://doi.org/10.1007/s00338-021-02133-7

    • Google Scholar
65. 1. Lough JM
    2. Barnes DJ

    (2000) Environmental controls on growth of the massive coral Porites

    Journal of Experimental Marine Biology and Ecology 245:225–243.

    https://doi.org/10.1016/s0022-0981(99)00168-9

    • PubMed
    • Google Scholar
66. 1. Lyndby NH
    2. Kühl M
    3. Wangpraseurt D

    (2016) Heat generation and light scattering of green fluorescent protein-like pigments in coral tissue

    Scientific Reports 6:26599.

    https://doi.org/10.1038/srep26599

    • PubMed
    • Google Scholar
67. 1. Lyndby NH
    2. Holm JB
    3. Wangpraseurt D
    4. Ferrier-Pagès C
    5. Kühl M

    (2019) Bio-optical properties and radiative energy budgets in fed and unfed scleractinian corals (Pocillopora sp.) during thermal bleaching

    Marine Ecology Progress Series 629:1–17.

    https://doi.org/10.3354/meps13146

    • Google Scholar
68. 1. Marcelino LA
    2. Westneat MW
    3. Stoyneva V
    4. Henss J
    5. Rogers JD
    6. Radosevich A
    7. Turzhitsky V
    8. Siple M
    9. Fang A
    10. Swain TD
    11. Fung J
    12. Backman V

    (2013) Modulation of light-enhancement to symbiotic algae by light-scattering in corals and evolutionary trends in bleaching

    PLOS ONE 8:e61492.

    https://doi.org/10.1371/journal.pone.0061492

    • PubMed
    • Google Scholar
69. 1. Martinez S
    2. Kolodny Y
    3. Shemesh E
    4. Scucchia F
    5. Nevo R
    6. Levin-Zaidman S
    7. Paltiel Y
    8. Keren N
    9. Tchernov D
    10. Mass T

    (2020) Energy sources of the depth-generalist mixotrophic coral Stylophora pistillata

    Frontiers in Marine Science 7:988.

    https://doi.org/10.3389/fmars.2020.566663

    • PubMed
    • Google Scholar
70. 1. Matz MV
    2. Fradkov AF
    3. Labas YA
    4. Savitsky AP
    5. Zaraisky AG
    6. Markelov ML
    7. Lukyanov SA

    (1999) Fluorescent proteins from nonbioluminescent Anthozoa species

    Nature Biotechnology 17:969–973.

    https://doi.org/10.1038/13657

    • PubMed
    • Google Scholar
71. 1. Muko S
    2. Kawasaki K
    3. Sakai K
    4. Takasu F
    5. Shigesada N

    (2000)

    Morphological plasticity in the coral Porites sillimaniani and its adaptive significance

    Bulletin of Marine Science 66:225–239.

    • Google Scholar
72. Book

    1. Muscatine L

    (1990)

    The role of symbiotic algae in carbon and energy flux in coral reefs In

    In: Dubinsky Z, editors. Ecosystems of the World, 25. Coral Reefs. Amsterdam: Elsevier. pp. 75–87.

    • Google Scholar
73. 1. Nienhaus GU
    2. Wiedenmann J

    (2009) Structure, dynamics and optical properties of fluorescent proteins: perspectives for marker development

    Chemphyschem 10:1369–1379.

    https://doi.org/10.1002/cphc.200800839

    • PubMed
    • Google Scholar
74. 1. Nir O
    2. Gruber DF
    3. Einbinder S
    4. Kark S
    5. Tchernov D

    (2011) Changes in scleractinian coral Seriatopora hystrix morphology and its endocellular Symbiodinium characteristics along a bathymetric gradient from shallow to mesophotic reef

    Coral Reefs 30:1089–1100.

    https://doi.org/10.1007/s00338-011-0801-z

    • Google Scholar
75. 1. Oswald F
    2. Schmitt F
    3. Leutenegger A
    4. Ivanchenko S
    5. D’Angelo C
    6. Salih A
    7. Maslakova S
    8. Bulina M
    9. Schirmbeck R
    10. Nienhaus GU
    11. Matz MV
    12. Wiedenmann J

    (2007) Contributions of host and symbiont pigments to the coloration of reef corals

    The FEBS Journal 274:1102–1109.

    https://doi.org/10.1111/j.1742-4658.2007.05661.x

    • PubMed
    • Google Scholar
76. 1. Quick C
    2. D’Angelo C
    3. Wiedenmann J

    (2018) Trade-offs associated with photoprotective green fluorescent protein expression as potential drivers of balancing selection for color polymorphism in reef corals

    Frontiers in Marine Science 5:1–11.

    https://doi.org/10.3389/fmars.2018.00011

    • Google Scholar
77. 1. Ralph PJ
    2. Gademann R
    3. Larkum AWD
    4. Kühl M

    (2002) Spatial heterogeneity in active chlorophyll fluorescence and PSII activity of coral tissues

    Marine Biology 141:639–646.

    https://doi.org/10.1007/s00227-002-0866-x

    • Google Scholar
78. 1. Rickelt LF
    2. Lichtenberg M
    3. Trampe ECL
    4. Kühl M

    (2016) Fiber-optic probes for small-scale measurements of scalar irradiance

    Photochemistry and Photobiology 92:331–342.

    https://doi.org/10.1111/php.12560

    • PubMed
    • Google Scholar
79. 1. Rocker MM
    2. Francis DS
    3. Fabricius KE
    4. Willis BL
    5. Bay LK

    (2019) Temporal and spatial variation in fatty acid composition in Acropora tenuis corals along water quality gradients on the Great Barrier Reef, Australia

    Coral Reefs 38:215–228.

    https://doi.org/10.1007/s00338-019-01768-x

    • Google Scholar
80. 1. Rosset S
    2. Wiedenmann J
    3. Reed AJ
    4. D’Angelo C

    (2017) Phosphate deficiency promotes coral bleaching and is reflected by the ultrastructure of symbiotic dinoflagellates

    Marine Pollution Bulletin 118:180–187.

    https://doi.org/10.1016/j.marpolbul.2017.02.044

    • PubMed
    • Google Scholar
81. 1. Rouzé H
    2. Galand PE
    3. Medina M
    4. Bongaerts P
    5. Pichon M
    6. Pérez-Rosales G
    7. Torda G
    8. Moya A
    9. Raina JB
    10. Hédouin L
    11. Under The Pole Consortium

    (2021) Symbiotic associations of the deepest recorded photosynthetic scleractinian coral (172 m depth)

    The ISME Journal 15:1564–1568.

    https://doi.org/10.1038/s41396-020-00857-y

    • PubMed
    • Google Scholar
82. 1. Salih A
    2. Larkum A
    3. Cox G
    4. Kühl M
    5. Hoegh-Guldberg O

    (2000) Fluorescent pigments in corals are photoprotective

    Nature 408:850–853.

    https://doi.org/10.1038/35048564

    • PubMed
    • Google Scholar
83. 1. Scheufen T
    2. Iglesias-Prieto R
    3. Enríquez S

    (2017) Changes in the number of symbionts and Symbiodinium cell pigmentation modulate differentially coral light absorption and photosynthetic performance

    Frontiers in Marine Science 4:1–17.

    https://doi.org/10.3389/fmars.2017.00309

    • Google Scholar
84. 1. Schlichter D
    2. Meier U
    3. Fricke HW

    (1994) Improvement of photosynthesis in zooxanthellate corals by autofluorescent chromatophores

    Oecologia 99:124–131.

    https://doi.org/10.1007/BF00317092

    • PubMed
    • Google Scholar
85. 1. Shagin DA
    2. Barsova EV
    3. Yanushevich YG
    4. Fradkov AF
    5. Lukyanov KA
    6. Labas YA
    7. Semenova TN
    8. Ugalde JA
    9. Meyers A
    10. Nunez JM
    11. Widder EA
    12. Lukyanov SA
    13. Matz MV

    (2004) GFP-like proteins as ubiquitous metazoan superfamily: evolution of functional features and structural complexity

    Molecular Biology and Evolution 21:841–850.

    https://doi.org/10.1093/molbev/msh079

    • PubMed
    • Google Scholar
86. 1. Shimomura O
    2. Johnson FH
    3. Saiga Y

    (1962) Extraction, purification and properties of aequorin, a bioluminescent protein from the luminous hydromedusan, Aequorea

    Journal of Cellular and Comparative Physiology 59:223–239.

    https://doi.org/10.1002/jcp.1030590302

    • PubMed
    • Google Scholar
87. 1. Smith E.G
    2. D’Angelo C
    3. Salih A
    4. Wiedenmann J

    (2013) Screening by coral green fluorescent protein (GFP)-like chromoproteins supports a role in photoprotection of zooxanthellae

    Coral Reefs 32:463–474.

    https://doi.org/10.1007/s00338-012-0994-9

    • Google Scholar
88. 1. Smith EG
    2. D’Angelo C
    3. Sharon Y
    4. Tchernov D
    5. Wiedenmann J

    (2017) Acclimatization of symbiotic corals to mesophotic light environments through wavelength transformation by fluorescent protein pigments

    Proceedings. Biological Sciences 284:20170320.

    https://doi.org/10.1098/rspb.2017.0320

    • PubMed
    • Google Scholar
89. 1. Soto D
    2. De Palmas S
    3. Ho MJ
    4. Denis V
    5. Chen CA

    (2018) Spatial variation in the morphological traits of Pocillopora verrucosa along a depth gradient in Taiwan

    PLOS ONE 13:e0202586.

    https://doi.org/10.1371/journal.pone.0202586

    • PubMed
    • Google Scholar
90. 1. Szabó M
    2. Wangpraseurt D
    3. Tamburic B
    4. Larkum AWD
    5. Schreiber U
    6. Suggett DJ
    7. Kühl M
    8. Ralph PJ

    (2014) Effective light absorption and absolute electron transport rates in the coral Pocillopora damicornis

    Plant Physiology and Biochemistry 83:159–167.

    https://doi.org/10.1016/j.plaphy.2014.07.015

    • PubMed
    • Google Scholar
91. 1. Tamir R
    2. Eyal G
    3. Kramer N
    4. Laverick JH
    5. Loya Y

    (2019) Light environment drives the shallow‐to‐mesophotic coral community transition

    Ecosphere 10:2839.

    https://doi.org/10.1002/ecs2.2839

    • Google Scholar
92. 1. Tamir R
    2. Ben-Zvi O
    3. Eyal G
    4. Kramer N
    5. Loya Y

    (2020) Reciprocal-transplantation between shallow and mesophotic stony corals

    Marine Environmental Research 161:105035.

    https://doi.org/10.1016/j.marenvres.2020.105035

    • PubMed
    • Google Scholar
93. 1. Taylor Parkins SK
    2. Murthy S
    3. Picioreanu C
    4. Kühl M

    (2021) Multiphysics modelling of photon, mass and heat transfer in coral microenvironments

    Journal of the Royal Society, Interface 18:20210532.

    https://doi.org/10.1098/rsif.2021.0532

    • PubMed
    • Google Scholar
94. 1. Titlyanov EA
    2. Titlyanova TV
    3. Yamazato K
    4. van Woesik R

    (2001) Photo-acclimation dynamics of the coral Stylophora pistillata to low and extremely low light

    Journal of Experimental Marine Biology and Ecology 263:211–225.

    https://doi.org/10.1016/S0022-0981(01)00309-4

    • Google Scholar
95. 1. Todd PA

    (2008) Morphological plasticity in scleractinian corals

    Biological Reviews of the Cambridge Philosophical Society 83:315–337.

    https://doi.org/10.1111/j.1469-185x.2008.00045.x

    • PubMed
    • Google Scholar
96. 1. Ugalde JA
    2. Chang BSW
    3. Matz MV

    (2004) Evolution of coral pigments recreated

    Science 305:1433.

    https://doi.org/10.1126/science.1099597

    • PubMed
    • Google Scholar
97. 1. Veal CJ
    2. Carmi M
    3. Dishon G
    4. Sharon Y
    5. Michael K
    6. Tchernov D
    7. Hoegh-Guldberg O
    8. Fine M

    (2010) Shallow-water wave lensing in coral reefs: a physical and biological case study

    The Journal of Experimental Biology 213:4304–4312.

    https://doi.org/10.1242/jeb.044941

    • PubMed
    • Google Scholar
98. 1. Vogelmann TC
    2. Evans JR

    (2002) Profiles of light absorption and chlorophyll within spinach leaves from chlorophyll fluorescence

    Plant, Cell & Environment 25:1313–1323.

    https://doi.org/10.1046/j.1365-3040.2002.00910.x

    • Google Scholar
99. 1. Wangpraseurt D
    2. Larkum AWD
    3. Ralph PJ
    4. Kühl M

    (2012) Light gradients and optical microniches in coral tissues

    Frontiers in Microbiology 3:316.

    https://doi.org/10.3389/fmicb.2012.00316

    • PubMed
    • Google Scholar
100. 1. Wangpraseurt D
     2. Larkum AWD
     3. Franklin J
     4. Szabó M
     5. Ralph PJ
     6. Kühl M

     (2014a) Lateral light transfer ensures efficient resource distribution in symbiont-bearing corals

     The Journal of Experimental Biology 217:489–498.

     https://doi.org/10.1242/jeb.091116

     • PubMed
     • Google Scholar
101. 1. Wangpraseurt D
     2. Polerecky L
     3. Larkum AWD
     4. Ralph PJ
     5. Nielsen DA
     6. Pernice M
     7. Kühl M

     (2014b) The in situ light microenvironment of corals

     Limnology and Oceanography 59:917–926.

     https://doi.org/10.4319/lo.2014.59.3.0917

     • Google Scholar
102. 1. Wangpraseurt D
     2. Tamburic B
     3. Szabó M
     4. Suggett D
     5. Ralph PJ
     6. Kühl M

     (2014c) Spectral effects on Symbiodinium photobiology studied with a programmable light engine

     PLOS ONE 9:e112809.

     https://doi.org/10.1371/journal.pone.0112809

     • PubMed
     • Google Scholar
103. 1. Wangpraseurt D
     2. Jacques SL
     3. Petrie T
     4. Kühl M

     (2016a) Monte carlo modeling of photon propagation reveals highly scattering coral tissue

     Frontiers in Plant Science 7:1404.

     https://doi.org/10.3389/fpls.2016.01404

     • PubMed
     • Google Scholar
104. 1. Wangpraseurt D
     2. Pernice M
     3. Guagliardo P
     4. Kilburn MR
     5. Clode PL
     6. Polerecky L
     7. Kühl M

     (2016b) Light microenvironment and single-cell gradients of carbon fixation in tissues of symbiont-bearing corals

     The ISME Journal 10:788–792.

     https://doi.org/10.1038/ismej.2015.133

     • PubMed
     • Google Scholar
105. 1. Wangpraseurt D
     2. Holm JB
     3. Larkum AWD
     4. Pernice M
     5. Ralph PJ
     6. Suggett DJ
     7. Kühl M

     (2017a) In vivo microscale measurements of light and photosynthesis during coral bleaching: evidence for the optical feedback loop?

     Frontiers in Microbiology 8:59.

     https://doi.org/10.3389/fmicb.2017.00059

     • PubMed
     • Google Scholar
106. 1. Wangpraseurt D
     2. Wentzel C
     3. Jacques SL
     4. Wagner M
     5. Kühl M

     (2017b) In vivo imaging of coral tissue and skeleton with optical coherence tomography

     Journal of the Royal Society, Interface 14:20161003.

     https://doi.org/10.1098/rsif.2016.1003

     • PubMed
     • Google Scholar
107. 1. Wangpraseurt D
     2. Jacques S
     3. Lyndby N
     4. Holm JB
     5. Pages CF
     6. Kühl M

     (2019) Microscale light management and inherent optical properties of intact corals studied with optical coherence tomography

     Journal of the Royal Society, Interface 16:20180567.

     https://doi.org/10.1098/rsif.2018.0567

     • PubMed
     • Google Scholar
108. 1. Wangpraseurt D
     2. You S
     3. Azam F
     4. Jacucci G
     5. Gaidarenko O
     6. Hildebrand M
     7. Kühl M
     8. Smith AG
     9. Davey MP
     10. Smith A
     11. Deheyn DD
     12. Chen S
     13. Vignolini S

     (2020) Bionic 3D printed corals

     Nature Communications 11:1748.

     https://doi.org/10.1038/s41467-020-15486-4

     • PubMed
     • Google Scholar
109. 1. Wiedenmann J
     2. Ivanchenko S
     3. Oswald F
     4. Schmitt F
     5. Röcker C
     6. Salih A
     7. Spindler KD
     8. Nienhaus GU

     (2004) EosFP, a fluorescent marker protein with UV-inducible green-to-red fluorescence conversion

     PNAS 101:15905–15910.

     https://doi.org/10.1073/pnas.0403668101

     • PubMed
     • Google Scholar
110. 1. Wiedenmann J
     2. D’Angelo C
     3. Smith EG
     4. Hunt AN
     5. Legiret FE
     6. Postle AD
     7. Achterberg EP

     (2013) Nutrient enrichment can increase the susceptibility of reef corals to bleaching

     Nature Climate Change 3:160–164.

     https://doi.org/10.1038/nclimate1661

     • Google Scholar
111. 1. Wijgerde T
     2. van Melis A
     3. Silva CIF
     4. Leal MC
     5. Vogels L
     6. Mutter C
     7. Osinga R

     (2014) Red light represses the photophysiology of the scleractinian coral Stylophora pistillata

     PLOS ONE 9:e92781.

     https://doi.org/10.1371/journal.pone.0092781

     • PubMed
     • Google Scholar
112. Conference

     1. Willis BL

     (1985)

     Phenotypic plasticity versus phenotypic stability in the reef corals Turbinaria mesenterina and Pavona cactus

     Proceedings of the Fifth International Coral Reef Symposium. pp. 107–112.

     • Google Scholar
113. 1. Winters G
     2. Beer S
     3. Zvi B
     4. Brickner I
     5. Loya Y

     (2009) Spatial and temporal photoacclimation of Stylophora pistillata: zooxanthella size, pigmentation, location and clade

     Marine Ecology Progress Series 384:107–119.

     https://doi.org/10.3354/meps08036

     • Google Scholar
114. 1. Yamashita H
     2. Koike K
     3. Shinzato C
     4. Jimbo M
     5. Suzuki G

     (2021) Can Acropora tenuis larvae attract native Symbiodiniaceae cells by green fluorescence at the initial establishment of symbiosis?

     PLOS ONE 16:e0252514.

     https://doi.org/10.1371/journal.pone.0252514

     • PubMed
     • Google Scholar

Author details

1. Elena Bollati

   1. Coral Reef Laboratory, School of Ocean and Earth Science, University of Southampton, Southampton, United Kingdom
   2. Marine Biology Section, Department of Biology, University of Copenhagen, Helsingør, Denmark
   3. Department of Biological Sciences, National University of Singapore, Singapore, Singapore

   Contribution

   Formal analysis, Investigation, Visualization, Writing - original draft

   For correspondence

   elena.bollati@bio.ku.dk

   Competing interests

   No competing interests declared

   "This ORCID iD identifies the author of this article:" 0000-0003-3536-4587

2. Niclas H Lyndby

   1. Marine Biology Section, Department of Biology, University of Copenhagen, Helsingør, Denmark
   2. Laboratory for Biological Geochemistry, School of Architecture, Civil and Environmental Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland

   Contribution

   Investigation, Writing – review and editing

   Competing interests

   No competing interests declared

   "This ORCID iD identifies the author of this article:" 0000-0003-0533-9663

3. Cecilia D'Angelo

   Coral Reef Laboratory, School of Ocean and Earth Science, University of Southampton, Southampton, United Kingdom

   Contribution

   Conceptualization, Supervision, Investigation, Methodology, Writing – review and editing

   Competing interests

   No competing interests declared

4. Michael Kühl

   1. Marine Biology Section, Department of Biology, University of Copenhagen, Helsingør, Denmark
   2. Climate Change Cluster, University of Technology Sydney, Sydney, Australia

   Contribution

   Conceptualization, Resources, Supervision, Funding acquisition, Methodology, Writing – review and editing

   Competing interests

   No competing interests declared

   "This ORCID iD identifies the author of this article:" 0000-0002-1792-4790

5. Jörg Wiedenmann

   Coral Reef Laboratory, School of Ocean and Earth Science, University of Southampton, Southampton, United Kingdom

   Contribution

   Conceptualization, Resources, Supervision, Funding acquisition, Investigation, Methodology, Writing – review and editing

   Competing interests

   No competing interests declared

   "This ORCID iD identifies the author of this article:" 0000-0003-2128-2943

6. Daniel Wangpraseurt

   1. Department of NanoEngineering, UC San Diego, San Diego, United States
   2. Marine Biological Research Division, Scripps Institution of Oceanography, UC San Diego, San Diego, United States
   3. Bioinspired Photonics Group, Department of Chemistry, University of Cambridge, Cambridge, United Kingdom

   Contribution

   Conceptualization, Supervision, Investigation, Methodology, Writing – review and editing

   For correspondence

   dwangpraseurt@eng.ucsd.edu

   Competing interests

   No competing interests declared

   "This ORCID iD identifies the author of this article:" 0000-0003-4834-8981

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